A guanine is swapped for a thymine in a gene sequence. Explain how this may alter the function of the protein it translates.

  • Google+ icon
  • LinkedIn icon

The alteration in the nucleotide sequence of the gene may result in a change in the amino acid sequence of the protein during translation. Each set of three RNA nucleotides (anticodon) is recognised by a ribosome during translation, and a specific amino acid is attached to the growing amino acid sequence according to the anticodon sequence. A different amino acid may have different chemical properties which results in altered folding and/or interactions with other molecules which changes its function.

Matthew  D. A Level Biology tutor, GCSE Biology tutor

About the author

is an online A Level Biology tutor who tutored with MyTutor studying at Durham University

Still stuck? Get one-to-one help from a personally interviewed subject specialist.

95% of our customers rate us

Browse tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss